Dwc7400aaw maytag -glass are cloudy,groundup food particles drying to dishes & glasses,when filling makes loud high pitched sound-generally not cleaning well.

I am not sure about the buzzing but cloudy dishes is caused by

hard water. www.dishwasherfilter.com has a product to solve this problem once and for all. It filters the water going into your dishwasher and removes the hard minerals that leave those spots. It is very affordable and even has a money back guarantee. You will love the way your dishes look with this product.

cloudy dishes, white generally means an overdose of salt in the dishwasher, try turning down the salt setting usually set to 4 from factory

Hi

If you are noticing that the dishes are not clean, then there are a few things to check for. Check the soap powder if it's kept in a dry environment. Also try replacing the powder with something like a gel or liquid. Next thing to check for is the water pressure and fill valve. Check if the water is filling in and the spray arms are throwing the water with enough pressure. Try and listen to the sound if you hear a proper spraying action sound.

If it seems as a low water pressure then check the fill valve. Now, check if dishwasher is draining the water or not. While the dishwasher is working check whether the dishwasher is draining and there is not much left out water after the cycle is complete. Try cleaning the spray arm with a soft brush. The water temperature plays a major role in cleaning of dishes. The temp should be between 125 and 150 F for dishwasher to clean the dishes. Hope this helps...

modern day dishwasher use less water than the older ones so you have to use less soap a lot less only 2 tablespoons but you also have to use rinse aid with the very little soap the cloudy residue on the dishes is left over soap

The problem is hard water. Go to www.dishwasherfilter.com. They have a new product out that solves this problem once and for all. It filters the water entering your dishwasher and removes the hard minerals that cause these spots. Very affordable and guaranteed to leave your dishes looking amazing every time.

This is a classic sign of too much detergent. Are you only using one tablet? Too low of a washing temperature could also be your culprit. Dishwasher detergent needs to be washed with at least 120 degree water. Check to make sure your supply is hot (if it's plumbed to intersect with your faucet, just check faucet hot water supply temp). I'm not sure why you're running it on a two hour cycle, dishwashers can generally do the job in about 40 minutes. The grit is probably because there are food particles in your food trap. Make sure the food filter beneath the spray arm (if equipped) is clean and check the lowest areas for food scraps.

If someone is putting dishes in the washer and obstructing the spray ams that would cause food to stay on dishes. After loading dishwasher and pushing in baskets make sure the spray arm doesnt hit any of the dishes causing them to not clean properly. If that doesnt work or is definately not your problem try removing the spray arm and seeing if it has food inside of it. Some times they get food build up in them and need to be flushed out.

the problem is hard water. go to www.dishwasherfilter.com. they have a filter designed specifically for this problem. it filters the water going into your dishwasher leaving your dishes crystal clean with every load. it is very affordable and guaranteed to work.

Very common problem is soap build up in these machines. Try putting it into a wash cycle with no dishes, and no soap. Let it wash for about 5 minutes, and then open the door. If you see alot of soap suds, then soap build up is the problem. Try doing a couple loads with no soap, and no dishes, and throw a cup of vinegar into the machine halfway through the wash. Repeat as necessary. This should solve your problem.

There are no filters in the dishwasher. However, you may have filters under your sink or near your hot water tank for whole house filtering.